fixed indentation

Author: PaddyKe

contents/approximate_counting/code/java/ApproximateCounting.java

@@ -10,7 +10,7 @@ public class ApproximateCounting {
      * It returns the approximate count
      */
     static double n(double v, double a) {
-	return a * (Math.pow(1 + 1 / a, v) - 1);
+        return a * (Math.pow(1 + 1 / a, v) - 1);
     }
 
 
@@ -21,13 +21,13 @@ static double n(double v, double a) {
      * It returns the new value for v
      */
     static double increment(double v, double a) {
-	double delta = 1 / (n(v + 1, a) - n(v, a));
+        double delta = 1 / (n(v + 1, a) - n(v, a));
 
-	if (Math.random() <= delta) {
-		return v + 1;
-	} else {
-		return v;
-	}
+        if (Math.random() <= delta) {
+            return v + 1;
+        } else {
+            return v;
+        }
     }
 
 
@@ -39,13 +39,13 @@ static double increment(double v, double a) {
      * It returns the new value for v
      */
     static double approximateCount(int nItems, double a) {
-    	double v = 0;
-	
-	for (int i = 1; i < nItems + 1; i++) {
-		v = increment(v, a);
-	}
+        double v = 0;
+    
+        for (int i = 1; i < nItems + 1; i++) {
+            v = increment(v, a);
+        }
 
-	return n(v, a);
+        return n(v, a);
     }
 
     /*
@@ -57,26 +57,26 @@ static double approximateCount(int nItems, double a) {
      * It terminates the program on failure
      */
     static void testApproximateCount(int nTrails, int nItems, double a, double threshold) {
-	double avg = DoubleStream.generate(() -> approximateCount(nItems, a))
-			         .limit(nTrails)
-			         .average()
-				 .getAsDouble();
-	
-	if (Math.abs((avg - nItems) / nItems) < threshold) {
-		System.out.println("passed");
-	}
+        double avg = DoubleStream.generate(() -> approximateCount(nItems, a))
+                     .limit(nTrails)
+                     .average()
+                     .getAsDouble();
+    
+        if (Math.abs((avg - nItems) / nItems) < threshold) {
+            System.out.println("passed");
+        }
     }
 
 
     public static void main(String args[]) {
-	System.out.println("testing 1,000, a = 30, 1% error");
-	testApproximateCount(100, 1_000, 30, 0.1);
+        System.out.println("testing 1,000, a = 30, 1% error");
+        testApproximateCount(100, 1_000, 30, 0.1);
 
-	System.out.println("testing 12,345, a = 10, 1% error");
-	testApproximateCount(100, 12_345, 10, 0.1);
-	
-	System.out.println("testing 222,222, a = 0.5, 10% error");
-	testApproximateCount(100, 222_222, 0.5, 0.2);
+        System.out.println("testing 12,345, a = 10, 1% error");
+        testApproximateCount(100, 12_345, 10, 0.1);
+    
+        System.out.println("testing 222,222, a = 0.5, 10% error");
+        testApproximateCount(100, 222_222, 0.5, 0.2);
     }
 
 }